Awesome email software that will help you focus, save time, and get more done. Postbox is considered as one of the best desktop Gmail client with native Gmail Label support, dedicated view for "important" labels, convert dedicated dates to Google Calendar events etc.

The Postbox interface has been re-designed to be simpler and more intuitive. Postbox Conversation Views are more powerful, actionable, and easy to read. Postbox gathers conversation fragments from multiple folders and presents them within a unified view. Quickly bring yourself up to speed and jump into discussions with more information, context, and insight.